Rule

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Sid
3-17696

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in windows 2000.

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Impact:
Denial of Service.  Loss of integrity. 

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Detailed Information:
The DNS Resolver Cache Service (aka DNSCache) in Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008 does not properly cache crafted DNS responses, which makes it easier for remote attackers to predict transaction IDs and poison caches by sending many crafted DNS queries that trigger "unnecessary lookups," aka "DNS Server Response Validation Vulnerability."

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Affected Systems:
microsoft windows 2000 

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Attack Scenarios:


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Ease of Attack:
Medium.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

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Contributors:
Sourcefire Vulnerability Research Team
This document was generated from data supplied by the National Vulnerability Database. A product of the National Institute of Standards and Technology.
For more information see http://nvd.nist.gov/

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Additional References:

NIST CVE-2009-0234:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-0234
  
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